package org.csmzxy.class2334;

public class Example04 {
    public static void main(String[] args){
        String username1 = "heima12345！";
        String username2 = "Heima12345！";
        System.out.println("字符串"+username1+"是否以heima开头：" + username1.startsWith("heima"));
        System.out.println("字符串"+username1+"是否以!结尾：" + username1.endsWith("！"));
        System.out.println("字符串"+username1+"是否是否为空：" + username1.isEmpty());
        System.out.println("字符串"+username1+"是否包含字符串123：" + username1.contains("123"));
        System.out.println("字符串"+username1+"，" + username2+"内容是否相同：" + username1.equals(username2));
        System.out.println("忽略大小写判断字符串"+username1+"，" + username2+"内容是否相同：" + username1.equalsIgnoreCase(username2));
        System.out.println("按Unicode比较字符串"+username1+"，" + username2+"的大小：" + username1.compareTo(username2));
    }
}
